Corrective maintenance refers to the actions taken to repair equipment or systems after a failure has occurred. This type of maintenance aims to restore functionality and ensure that the equipment operates as intended. It is often unplanned and can result from wear and tear, unexpected breakdowns, or other issues that arise during normal operation. This maintenance approach contrasts with preventive maintenance, which involves regular checks and servicing to prevent failures before they happen. Corrective maintenance is essential in industries like manufacturing and transportation, where equipment reliability is crucial for productivity and safety.